Fans in Calgary likely knew very little about Hamilton from their own experience. So when the trade happened they did what too many others do...they listened to the media.
And what was it the media was saying? That Hamilton was a sure-fire #1, the Bruins got fleeced, etc. When the trade occurred I honestly couldn't believe what I was hearing from the writers and even a couple other GM's, and I still am adamant that they way over-valued Hamilton. Last year I saw a soft on the puck, non-physical d-man who made questionable decisions that, despite his age, were very concerning.
Going back to the writers, I think the same impact they had on Calgary fans opinions they had here in Boston, too. Bruins fans forgot what they saw last year, instead being influenced by the writers proclaiming Dougie a stud...so the trade looked horrible in their eyes.
Dougie is what he is...a good sized D-man with skills who can either be a solid #2 if he gets it together, an average d-man if he doesn't, or somewhere in between. But if Calgary fans are expecting him to be the next Gio/Keith/Doughty, they're going to be disappointed.